通过PROTAC分子选择性降解TEAD,在体外和体外表现出强大的抗癌效果
Yuhang Lu1,2, Ziqin Yan1, Jiaqi Sun3,2
1State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Rd, Shanghai 201203, China.
Journal of medicinal chemistry
|January 13, 2025
概括
研究人员开发了新的TEAD PROTACs (蛋白质溶解向金像体),以向与癌症有关的TEAD转录因子. 化合物40有效降解TEAD1,并在临床前模型中显示出显著的抗瘤活性,表明治疗潜力.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- 河马途径突变异常激活TEAD转录因子,驱动癌症的发展.
- TEADs被认为是与其过度激活相关的癌症的有希望的治疗点.
研究的目的:
- 设计和评估用于癌症治疗的新型TEAD向蛋白解析向化马体 (PROTACs).
- 研究开发的TEAD PROTACs的降解机制和抗瘤疗效.
主要方法:
- 通过使用CRBN和VHL结合器合成两系列TEAD PROTAC.
- 评估TEAD1降解功率 (DC50) 和涉及CRBN结合,TEAD1结合,E3结合酶活性和蛋白酶功能的机制研究.
- RNA测序和基因组丰富分析 (GSEA) 用于分析基因表达变化.
- 在小鼠异种移植模型MSTO-211H中评估抗瘤疗效.
主要成果:
- 强大的TEAD降解剂的鉴定,包括40 (H122) 化合物,其TEAD1降解DC50<10nM.
- 机理学研究证实,由化合物40诱导的TEAD1降解需要CRBN结合,TEAD1结合,E3结合酶活性和功能性蛋白酶体.
- 化合物40显著下调的Myc目标基因,如RNA-seq和GSEA所示.
- 化合物40在临床前小鼠异种移植模型中显示出强大的抗瘤功效.
结论:
- TEAD PROTACs,以化合物40为例,有效降解TEAD1并表现出显著的抗瘤活性.
- 这些发现凸显了TEAD PROTACs在治疗由TEAD过度激活导致的癌症方面的治疗潜力.
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